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Naemon

Network monitoring core based on the Nagios codebase

Monitoring & Status ★ 173 stars Hard setup GPL-2.0

Naemon is a host and service monitoring tool based on the Nagios core, designed for improved performance and modern features. It checks the availability of resources and alerts on outages.

Official siteSource code

Key features

  • Nagios-compatible checks
  • Improved performance
  • Livestatus query interface
  • Large plugin compatibility

Pros & cons

Strengths

  • Faster than classic Nagios
  • Reuses Nagios plugins

Trade-offs

  • Text-file configuration
  • Needs add-ons for a modern UI

Is Naemon secure?

OSV.dev has no published security advisories for Naemon's repository. No known vulnerabilities is not proof of security: it means none have been publicly catalogued.

Source: OSV.dev, checked 2026-10-14. How this is measured.

Naemon replaces

Self-hosted SolarWinds alternativesSelf-hosted PRTG alternatives

Health badge

Maintain Naemon? Add its health score to your README. The badge links back to this page.

SelfHostIndex: 73 · good

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